baber/WOPTO huggingface dataset:
Patent GB-642695-A (GB)
Title: Improvements relating to excitation control systems for d.c. dynamo electric machines
Inventor: SHAW NORMAN HARRY
IPC: H02P7/34
Filed: 1948-02-06
Abstract: 642,695. Exciting dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd. Feb. 6,1948, No. 3500. [Class 35] [Also in Group XXXVIIJ In a system for introducing compound excitation into a D.C. machine at a predetermined load current, a separately excited field winding on the machine is arranged to provide a component of excitation depending on the current in a circuit connected to a source of voltage varying with the load current, one or more counter E.M.F. cells being connected in series with the circuit to prevent the current flow until the voltage exceeds a predetermined value. The counter E.M.F. cells produce an opposing voltage to the current whatever the direction of the current flow. The invention is described as applied to a reversible and regenerative Ward- Leonard set, and in the form shown, the generator G having a separately excited field winding G1 feeds a motor M. The field G1 is energized by an exciter 11 excited partly (lla) from the D.C. mains 12 through a rheostat 13, and partly (11b) with a current flowing through the counter E.M.F. cells 14 due to the voltage developed across the generator series field winding G2 dependent on the load current. For load currents up to a predetermined value, no current passes the cells, but when the drop across the series winding G2 exceeds the maximum voltage of the cells, the winding 11b is energized and changes the excitation of the generator G to reduce the load current. Contactors 15, 16, 17 which short-circuit the cells, alter the load current setting. The field winding 10b of the motor exciter 10 is similarly controlled by the same cells or a separate bank, and reversing switches or rectifiers may be provided if the generator voltage is reversible.
Patent GB-996998-A (GB)
Title: Improvements in or relating to methods of assembling buildings
IPC: E04B1/348
Filed: 1962-01-31
Abstract: 996,998. Assembling buildings of prefabricated sections. PATENT CONCERN N.V. Jan. 31, 1962 [Feb. 3, 1961], No. 3654/62. Heading E1A. [Also in Divisions B8 and F2] A building is constructed by moving prefabricated sections 1-3 by winches etc. from a lorry across a guide 83 on to guides on the foundation or on the top of already positioned sections. The guide may be a lattice bridge 83 temporarily secured to the lorry and foundation or section. The guides on the foundation and section are angle bars. Two independently operable winches 47, Fig. 6 are on a tractor, cables from which pass over pulleys 81, 82 on two arms 64 pivoted on horizontal pivots 57 on the tractor. Each arm comprises two parallel tubes between which the pulleys are journalled. The other ends of the arms are temporarily secured to horizontal pivots on the foundation or section. In a modification a driven shaft extending from each side of the tractor drives drums 168, Fig. 19 at the foot of two masts 156 and the cables from the drums pass over pulleys 175 at the top of the mast over pulleys coaxial with the drums 168 and to a building section 1 or 2 on the lorry 135. For moving the section for the upper storey the cable passes from the pulleys 175 across the top of the ground floor sections. A modification is shown for erecting a building on a slope, Fig. 25 (not shown) and in which access to the site can only be obtained from the uphill side. In this case the winches are mounted at this side of the foundation and the cable passes to pulleys on the downhill side and back past the foundation and the lattice bridge to the building section on the lorry. A further modification comprises a lifting bridge Figs. 30, 32 (not shown) mounted between two towers and which is used to lower a building section from the lorry on to the foundation and to raise it on to the top of already placed building sections.
Patent GB-349994-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J17/00
Filed: 1930-02-03
Abstract: 349,994. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, RYDE, J. W. and HARRIS, N. L., of General Electric Co., Wembley, Middlesex. Feb. 3, 1930, No. 3677. [Class 39 (i).] In electric discharge lamps adapted for sound recording, of the type wherein the discharge column is viewed " end on," the anode is insulated along its length so that only the end is exposed, thereby presenting an area which is very small compared with that of the cathode. The anode 6, Fig. 2, may consist of a nickel wire 1 m.m. in diameter, which is secured to a leading-in wire 7, the whole being surrounded by a glass sheath 8 and the outer end of the nickel wire being rounded and flush with the open end of the sheath. Fig. 1 shows the anode 5 mounted in a bulb 2 forming part of a lamp consisting of two bulbs 1, 2 connected by a tube 3, the cathode 4 being mounted in the bulb 1.
Patent GB-395433-A (GB)
Title: Improvements in or relating to rotary dry cleaning or washing machines
IPC: D06F37/04
Filed: 1932-02-08
Abstract: <PICT:0395433/III/1> <PICT:0395433/III/2> The stationary casing 1 of a rotary drycleaning machine is provided with a longitudinally extending sump 16 in which an electric heating unit is detachably secured.  When the heater is removed the aperture in the sump in which the heater was screwed serves as a draw-off and a plug therefor may be provided.  The clothes receptacle 2 is provided with lifters 3 formed by bending in the peripheral wall of the receptacle, such lifters being either symmetrical or unsymmetrical and in the latter case they are arranged in two series facing in opposite directions, as shown in Fig. 4.  The receptacle may be formed with a flat portion 2a, as in Fig. 3 so that when this portion is in its lowest position it is above the normal level of liquid in the stationary casing, thereby facilitating the draining of articles resting thereon.
Patent GB-308202-A (GB)
Title: Improvements in or relating to chucks or holders
IPC: H02G3/32
Filed: 1929-02-04
Abstract: 308,202. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. March 19, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Binding-posts and terminals; direct connections between conductors.-A chuck or holder, particularly for holding bodies such as wires or needles, comprises two members capable of relative rotation, each of which is provided with a hole parallel to the common axis of rotation and at least one of which is eccentric to this axis. As applied to a unipolar electric contact plug the holes 24, 25 are formed in a stud 20 having an insulating cap 21 and in a socket 22 provided with an insulating coating 23 the stud and socket being rotatably connected by screw threads.
Patent GB-831327-A (GB)
Title: Improvements in and relating to conveyor belts
Inventor: BEECHAM ALAN
IPC: B65G17/06
Filed: 1956-02-07
Abstract: 831,327. Endless slat conveyers. COURTAULDS Ltd. Feb. 6, 1957 [Feb. 7, 1956], No. 3742/56. Class 78 (1). A conveyer consists of a series of slats 2, each of which has serrations, ridges or pins 3 projecting from its upper surface, a cylindrical channel 4 running the length of one edge, and a cylindrical bearing 5 running the length of the other edge. Adjacent slats are connected by sliding longitudinally the beading of one slat into the channel of the other. The slats are kept in place by threaded pins 7 which are inserted through holes 8 in one slat into grooves 9 in the beading of the adjacent slat. The slats are shorter than the width of the belt and are assembled end-to-end in rows, the slats in each row being staggered in relation to those in neighbouring rows. The slats may be made from metal sheeting or from a moulding of asbestos fibre impregnated with a thermosetting resin, e.g. a phenol-formaldehyde resin.
Patent GB-1374252-A (GB)
Title: Display device
IPC: G09F11/02
Filed: 1972-01-18
Abstract: 1374252 Display devices BRITISH PETROLEUM CO Ltd 18 Jan 1972 [3 Feb 1971] 3790/71 Heading G5C A changeable display device comprises a central rotatable wheel in driving engagement with sub-wheels each adapted to carry a display support bearing a number of display elements, the central and sub wheels being toothed or in frictional engagement. As shown a drive shaft 6 is connected to a central bevel gear 7 which drives a plurality of small bevel gears 8, and to each of these is connected a shaft 9 which is fixed to a display support (10), Fig. 2 (not shown), on which is mounted a truncated tetrahedron (11), Fig. 2 (not shown). When drive 1 operates the crank 3, the pawl and ratchet action 4, 5 causes the bevel gear 7 to rotate intermittently causing the tetrahedrons (11) to rotate through 120 degrees and thus show a different face and hence a different composite image. The displays may be illuminated from the centre of central gear 7. The drive to the central wheel preferably incorporates a friction disc to avoid damage if the displays stick.
Patent GB-212711-A (GB)
Title: Improvements in and relating to hydraulic power transmission
IPC: F16D31/02
Filed: 1923-02-08
Abstract: 212,711. Booth, W. Feb. 8, 1923. Clutches and speed-varying mechanism.- Hydraulic power transmission means comprises a block fixed to the driving shaft and provided with radial cylinders 6, Fig. 4, opposite pistons being connected by looped members 20, 21 engaging crank pins on an intermediate driven shaft 13, Fig. 1. The cylinders are connected by ducts 7 in which are valves 8 adjusted by a slidable member 34, levers 28, racks 33 and pinions 27. The crank chamber is filled with liquid and has a groove 9 connected to a duct 7 through a radial passage provided with a non-neturn valve. The shaft 13 is connected to a shaft 52 through reversible gearing comprising a pinion 50 on the shaft 13, an internally toothed gear 53 on the shaft 52, and a slidable member 41 externally and internally toothed at 46, 47 and carrying planet pinions 48.
Patent GB-606425-A (GB)
Title: Improvements in and relating to suspension systems for automative vehicles
IPC: B60G11/04
Filed: 1945-02-15
Abstract: 606,425. Motor vehicle driving gear. WILLYS-OVERLAND MOTORS, Inc. Feb. 15, 1945, No. 3865. Convention date, March 24, 1944. Addition to 588,866, [Group XXXII]. [Class 79 (iv)] [Also in Group XXXII] The road vehicle suspension system of the parent Specification, comprising a leaf-spring connected at its ends to the frame and between its ends to an axle casing articulated to a differential housing, is modified by the axle casing being articulated for a swinging movement to another axle casing of which the differential housing forms a part and with which it moves. As shown, a road wheel axle 70, Fig. 4, integral with one driven shaft 69 of the differential is contained within a casing 75 rigid with the differential housing 55 to which is also fixed one member 91 of a balljoint 91, 106, the other driven shaft 72 being secured to one element 96 of a universal coupling contained with the ball-joint 91, 106, the other element 97 being fixed to the second road wheel axle 100. The ball-joint member 106 is welded to the axle casing 192 of the axle 100 and has two part spherical surfaces 108, 109, Fig. 5, of differing radii, the surface 109 of less radius slidably engaging the inner surface 112 of the ball-joint member 91, while the outer surfaces 108, 105 of the members 106, 91 respectively are of equal radii and are engaged by the split members 42, 43 of a partspherical supporting housing bolted to a bracket 37 secured to transverse members 20, 21, Fig. 2, of the chassis frame. The balljoint is lubricated by oil from the housing 55 and is protected from dirt &c. by flexible covers 120, 121. Each axle casing 75, 102, near to its outer end is secured to the intermediate portion of a leaf-spring 26 by U-bolts 88, plate 130 and a spacing pad 87. A hydraulic shock absorber 136 of conventional design is mounted between pins 132, 138 carried by the spring plate 130 and the chassis respectively.
Patent GB-852242-A (GB)
Title: Photographic printing apparatus with a device for varying the gradation of the printproduced
IPC: G03C5/02
Filed: 1957-02-05
Abstract: 852,242. Photo-electric control of photographic printing. AGFA A. G. Feb. 5, 1957 [Feb. 10, 1956], No. 3966/57. Class 40(3). [Also in Group XX] In photographic printing apparatus providing, in addition to the printing light, an adjustable quantity of light for the purpose of reducing contrast in the print, the gradation characteristic and or sensitivity of the printing material are accounted for by additional adjustment of the intensity or duration of the additional light. As shown, lamp 13 for providing the additional light is in circuit with a switch 43 actuated by the relay 44 of an electronic time switch 45, the setting of which is adjusted by alteration of a tapping point 46 on a resistance 47 to take account of the light sensitivity of the printing paper. In addition, a switch 52 in the circuit of the printing lamp 3 is operated by a relay 51 of a time switch 48 which is actuated when the correct quantity of printing and additional light, which has penetrated the printing paper, has impinged on a photo-cell. This quantity is adjustable by a variable resistance 54. A common adjustment of the resistance 47, 54 is provided by a member 56 graduated in terms of the sensitivity of the printing paper.
Patent GB-139757-A (GB)
Title: Improvements in and relating to tip-wagons
IPC: B61D9/02
Filed: 1920-02-10
Abstract: 139,757. Ochsner, J. Feb. 28, 1919, [Convention date]. Tipping-wagons. - A tip-wagon body a is mounted at the ends on pivots b situated above its centre of gravity and carried by a frame d, rollers e, i being provided for facilitating its transverse movement across the supporting framework f, g, the final tipping movement being accomplished through chains on the pulleys o when connected to suitable hooks s on the tip-wagon member. The shafts o are each rotated by a handoperated chain drive. In the operation of tipping the body a on the left-hand side, the chain p of the pulley o on that side is first connected with a hook r on the right-hand side of the frame d. By rotating the shaft o, the frame d and tip-wagon body are moved across the supports g. The chain p<2> of the chain pulley on the shaft o is then connected to a hook s on the left-hand side of the tip-wagon body, and by the operation of this shaft the member a assumes the position shown. By reversing the movement of the right-hand shaft o, the member is allowed to fall into its normally pivoted position, and its supporting frame d is retracted by rotating the shaft with the chain p<2> connected to the left-hand side hook r of the frame d. A tipping movement on the other side of the car is performed in a similar manner.
Patent GB-1276247-A (GB)
Title: Method and apparatus for seating a bead of a tubeless tire on a bead seat of a vehicle wheel
IPC: B60C25/14
Filed: 1970-01-28
Abstract: 1276247 Inflating tubeless tyres B & J MFG CO 28 Jan 1970 [19 Feb 1969] 4098/70 Heading B7C. A tubeless tyre 16, Fig. 2, assembled on a wheel rim 20 is partially inflated in the horizontal position by directing a ring-shaped inwardly flowing stream of air through the space between bead 38 and bead seat 26. As shown compressed air is supplied to an annular ring 10 supported on the uppermost sidewall and provided with circumferentially-spaced holes 12 positioned to direct the air through the gap between bead 38 and adjacent bead seat 26. Bead 38 rises until it abuts the seat, whereafter inflation is continued through the usual rim-mounted valve 40, until both beads are fully seated. The air to the ring may be supplied from a reservoir 46. The ring may have blanked ends the spacing between which is adjustable to vary the diameter of the ring to suit tyres of different diameters. The ring may be of circular, oval or triangular crosssection.
Patent GB-294505-A (GB)
Title: Improvements in electromagnetic regulating apparatus or governors
IPC: G05B11/01
Filed: 1927-02-14
Abstract: 294,505. Kieback, E., and Peter, P. Feb. 14, 1927. Levels, regulating.-A float 20 in a tank 21 operates a lever 18 carrying the armature 19 of an electromagnet 16 using alternating current. 'The changes in the current produced by the motion of the armature when the level of the liquid in the tank alters' operate a switch 24 controlling a motor 26 operating a pump 25 supplying the tank.
Patent GB-1484208-A (GB)
Title: Electrically conducting carbon-coated metal oxides
IPC: C04B35/52
Filed: 1975-01-30
Abstract: 1484208 Depositing carbon on oxides EXXON RESEARCH & ENG CO 30 Jan 1975 [8 April 1974] 4128/75 Heading C7F [Also in Division H1] Electrically conducting compositions comprising (a) TiO 2 , BaTiO 3 , SrTiO 3 , MoO 2 , ZnO, NiO, Co 2 O 3  or Nb 2 O 5  coated with 2-12 wt. per cent C or (b) Al 2 O 3 , SiO 2 , MgO, or MnO coated with 50-90 wt. per cent C are formed by thermal decomposition of carbonaceous material. In the case of (a) 2-12%C is deposited but in the case of (b) 4-20% is deposited and the composite is treated with acid to raise the C to 50-90%. The C coating is preferably deposited by thermal decomposition of CO, ethylene, propylene or propane at 500-750‹C and 15p. si. and the acid used for leaching may be HNO 3 . The composites may be used as catalyst supports for Pt metals, Ag, Ni and Co which may be deposited on the oxides prior to C deposition or preferably after C deposition by impregnation with an aqueous salt solution and reduction in H 2  e.g. reduction of H 2 PtCl 6  and RuCl 3 . The catalysed composites are mixed with PTFE and pressed into fuel cell electrodes.
Patent GB-213384-A (GB)
Title: Improvements in or relating to armaments for air craft
IPC: B64D7/02
Filed: 1923-02-12
Abstract: 213,384. Davis, C. Feb. 12, 1923. Ordnance design; discharging by means external to breech mechanism.-Two or more downwardly-directed non-recoil guns E are detachably clamped in equal numbers to opposite sides of an aircraft fuselage B and are disposed in vertical planes parallel to and equidistant from the longitudinal axis of the fuselage. The guns, which are preferably of the type described in Specifications 23512/11 and 18268/13, are loaded at the base of operations and clamped in position on the fuselage by bands D<2> and bolts F arranged beneath collars e on the barrels. Eyes e<1> are provided for convenience in lifting the barrels. The guns may be clamped in position singly as shown, or a number of barrels may be clamped together so as to be attached or detached from the aircraft as a single unit, an equal number of such units being arranged on each side of the fuselage. The firing mechanism of each barrel includes a switch, and the switches are so arranged that the barrels may, by pressing a master switch be discharged singly, or in groups, or altogether in salvoes.
Patent GB-967006-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J21/00
Filed: 1962-02-02
Abstract: The invention of a 6, 16-dialkyl steroid compound selected from (B) the cis and trans forms of <FORM:0967006/C1/1> <FORM:0967006/C1/2> and <FORM:0967006/C1/3> where R and R1 are alkyl groups having from 1-8 carbon atoms, A is <FORM:0967006/C1/4> R11 is a hydrogen atom or an acyl group and is <FORM:0967006/C1/5> and a process of preparing a 6, 16-dialkyl -17-oxygenated -6- dehydro-progesterone compound which comprises (a) alkylating a 6-alkyl-5, 16-pregnandien-3b -ol-20-one 3-acylate with an alkyl metal halide, (b) acylating the complex so produced to provide a 6, 16a -dialkyl-5, 17(20)-pregnadien-3b , 20-diol-diacylate, (c) epoxidising said diacylate with a per-acid to provide a 5, 6: 17a , 20-dioxido-6, 16a -dialkyl pregnan-3b , 20-diol 3, 20-diacylate, (d) hydrolysing said diacylate under alkaline conditions to provide a 5, 6-oxido-6, 16a -dialkylpregnan-3b , 17a -diol-20-one, (e) hydrolysing said diol under acid conditions to a 6a , 16a -dialkylpregnan-3b , 5a , 6b , 17a -tetrol -20- one, (f) oxidising the 3-hydroxy function of said tetrol to a ketone function to provide a 6a , 16a -dialkylpregnan-5a , 6b , 17a -triol-3, 20-dione and (g) dehydrating the triol to provide a 6, 16a -dialkyl -17- oxygenated -6- dehydro progesterone compound. The 17a -hydroxy group of the product may be acylated. Specification 967,005 is referred to.
Patent GB-1439552-A (GB)
Title: Method of recording dgital data
IPC: G11B5/596
Filed: 1974-03-15
Abstract: 1439552 Disc recording and playback BURROUGHS CORP 15 March 1974 4209/75 Divided out of 1439551 Heading G5R The disclosure is included in that in Specification 1,439,551, but the claims relate to a method of recording digital data on a plural track record disc, wherein the tracks are arranged in groups with equal numbers of tracks in the groups, each group consisting of a series of successive tracks and each group including two sub-groups, each sub-group consisting of a series of successive tracks, wherein the data is recorded in such a way that, for each sub-group, the bit rate of each track in that sub-group differs from the bit rates of all the other tracks in that subgroup, but that, for each group, the bit rate of each track in that group is the same as the bit rate of the corresponding track in each of the other groups and that in each group the bit rate of each track of odd reference number differs from the bit rate of the, or each, immediately adjacent track of even reference number by an amount greater than the amount by which it differs from the next track of odd reference number, and wherein the bit rates are arranged so that in one sub-group of each group the bit rate of the odd-numbered tracks and the bit rate of the even-numbered tracks decrease as the track reference number increases, while in the other sub-group of each group the bit rate of the odd-numbered tracks and the bit rate of the even-numbered tracks increase as the track reference number increases.
Patent GB-578746-A (GB)
Title: Improvements in multiple-roll rolling mills
IPC: B21B13/14
Filed: 1943-03-16
Abstract: 578,746. Rolling. TRIGGS, W. W. (Sandvikens Jernverks Aktiebolag). March 16, 1943, No. 4285. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 12, 1943.] [Class 83 (iv)] Mills with small operative rolls backed up by series of auxiliary rolls of increasing diameter employ the same number of rolls in the outermost series as in the adjacent series, and the rolls in the latter series are supported in separate guided bearings displaceable radially. The operative rolls 1, Fig. 1, are driven from beyond the housing and are supported by the work a and by backing-rolls 2, 2<1>. Further backing- rolls 4, 6 and 4<11>, 6<11> have their axes in the same plane as those of the rolls 2, 2<1> respectively. Other backing-rolls 4<1>, 6<1> are symmetrically arranged as shown. Absence of lateral thrust on the rolls 4, 4<1> and 4<11> enables them to be guided in the housing. The upper part 10 of the housing is adjustable bodily with relation to the lower part and may be hinged to swing back. A modification employing ten rolls only is described. The rolls, particularly the outermost, may be in sleeve form supported by needle rollers 12, Fig. 4, guided by flanges 14 of non-rotating spindles 13. The outer flanges brace the housing cheeks 10 against the pressure of the tie bolts 15.